The formation of Y5V-type fine-grained ceramics based on spherical submicron BaZr 0.1 Ti 0.9 O 3 @Al 2 O 3 particles

Wang, Yan; Miao, Kangkang; Ma, Rujiang

doi:10.1016/j.ceramint.2016.06.083

Cited by 8 publications

(2 citation statements)

References 32 publications

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“…Based on our previous work, monodispersed cubic BaTiO 3 powder with an average particle size of 178 nm were synthesised using a co-precipitation method [29]. The typical preparation procedures of BaTiO 3 @PR powders with 20 wt% PR were carried out as follows.…”

Section: Introductionmentioning

confidence: 99%

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

et al. 2020

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In this paper, phenolic resin (PR) is coated on the monodispersed BaTiO 3 nanopowders (C-BTO) prepared by the coprecipitation method via a core-shell manner. This PR can optimize nanopowders' dispersibility in the granulation, and act as a grain growth inhibitor during sintering. So BaTiO 3 nanoceramics with dense and size-controlled morphology were achieved at a low sintering temperature. The microstructural and dielectric studies show that the grain size and dielectric properties initially increase and then decrease as the amount of PR increases. Moreover, the activation of PR is optimal at 20 wt%, and obtained ceramics have a high density and uniform grain size, with a relatively high dielectric constant (ɛ max) of 3545 and low dielectric loss (tanδ) of 0.011. Besides, by tailoring the particle size of C-BTO@PR powders, dense BaTiO 3 ceramics with mean size of 135-308 nm can be obtained with sizes similar to initial particle. The results demonstrate that PR coated BaTiO 3 nanopowders in core-shell structure is an effective strategy to prepare BaTiO 3 nanoceramics controllably.

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Section: Introductionmentioning

confidence: 99%

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

et al. 2020

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“…a) Schematic diagram of material design combining laminated modulation with tricritical phenomenon and the dielectric permittivity variation with temperature of LTF, BaTiO 3 ‐ x %BaSnO 3 (BTS‐ x ) and BaTiO 3 ‐ y %BaHfO 3 (BTH‐ y ) ceramics. b) The locations for a series of materials categories on the ε r maximum‐temperature stability ( C.V (%)) plot from 30 to 85 °C, and LTF shows both enhanced dielectric response as well as temperature reliability (A, 1475 °C‐sintered LTF; B, 1500 °C‐sintered LTF; C, 1550 °C‐sintered LTF; BST, Ba (1– x ) Sr x TiO 3 BSCT, Ba 0.8 Sr 0.12 Ca 0.08 TiO 3 PLZT, (Pb 1–x La x )(Zr y Ti 1–y ) 1–x/4 O 3 PMN, Pb(Mg 1/3 Nb 2/3 )O 3 BT‐BZ‐CT, BaTiO 3 ‐BaZrO 3 ‐CaTiO 3 BZT‐32.5BCT, 0.675Ba(Zr 0.2 Ti 0.8 )O 3 ‐0.325(Ba 0.7 Ca 0.3 )TiO 3 ; X7R and Y5V capacitor ceramics).…”

Section: Introductionmentioning

confidence: 99%

Laminated Modulation of Tricritical Ferroelectrics Exhibiting Highly Enhanced Dielectric Permittivity and Temperature Stability

Gao

Wang

et al. 2019

Adv Funct Materials

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Ferroelectric materials with large dielectric response and high temperaturestability have found significant applications in advanced electronics and electrical power/storage equipment. The effective approaches explored up to now mainly focus on improving dielectric response by employing the phase instability caused by the ferroelectric transition. Nevertheless, one inherent shortcoming is that the enhancement of dielectric permittivity is at the expense of the deterioration of its temperature stability. Here, a strategy that successfully achieves both enhanced dielectric response as well as excellent temperature reliability (with ε r ≈ 2 × 10 4 from 30 to 85 °C) by designing a laminated structure of tricritical ferroelectrics (LTF) with successive Curie temperatures is proposed. Moreover, the improvement in dielectric performance triggers the temperature-stable energy-storage performance as well as electrocaloric property in LTF specimens. Further microstructure investigation and phase-field modeling reveal that these remarkable properties of laminated layers originate from the successive occurrence of tricritical transition with a nanodomain structure in a wide temperature range. The findings may shed a new light on developing advanced ferroelectrics with high performance and thermal reliability.

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Effect of Constituent Core-sizes on Microstructure and Dielectric Properties of BaTiO3@(0.6Ba-TiO3-0.4BiAlO3) Core-Shell Material

Appiah

Hao

Chen

et al. 2018

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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The formation of Y5V-type fine-grained ceramics based on spherical submicron BaZr 0.1 Ti 0.9 O 3 @Al 2 O 3 particles

Cited by 8 publications

References 32 publications

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

A new strategy to achieve the controllable preparation of nanoceramics with BaTiO3@resin core–shell nanoparticles

Laminated Modulation of Tricritical Ferroelectrics Exhibiting Highly Enhanced Dielectric Permittivity and Temperature Stability

Effect of Constituent Core-sizes on Microstructure and Dielectric Properties of BaTiO3@(0.6Ba-TiO3-0.4BiAlO3) Core-Shell Material

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